US20030056408A1 - Self-lifting electric iron - Google Patents
Self-lifting electric iron Download PDFInfo
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- US20030056408A1 US20030056408A1 US10/218,572 US21857202A US2003056408A1 US 20030056408 A1 US20030056408 A1 US 20030056408A1 US 21857202 A US21857202 A US 21857202A US 2003056408 A1 US2003056408 A1 US 2003056408A1
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- support rods
- housing
- support rod
- self
- retractable support
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F75/00—Hand irons
- D06F75/40—Stands or supports attached to the iron
Definitions
- This invention relates to electric irons for ironing clothing and other items, and specifically to electric irons that include safety mechanisms for causing the irons to lift away from operating surfaces whenever they are left unattended.
- thermostat will cut off power automatically when the iron reaches the required temperature.
- the thermostat is a passive safety feature. It only detects the temperature of the iron's soleplate, but it cannot prevent an accident that may be caused by carelessly leaving the iron in a horizontal position.
- the heel portion of most irons is configured in a manner such that the iron can be balanced thereupon in an upright position, thereby removing the soleplate from contact with the article being ironed or with the ironing board cover.
- the iron in such upright position, the iron is usually unstable with respect to toppling, and can easily fall off the ironing board.
- various types of irons equipped with means to automatically effect disengagement of the soleplate from contact with the article being ironed or with the ironing board cover when the iron is not being used by raising the iron into an inclined position intermediate between an upright position and a horizontal position.
- U.S. Pat. No. 6,105,285 describes a scorch prevention electric iron having two modes of operation during the ironing process, namely: a natural up-mode wherein the iron rides on a plurality of ball bearing glide assemblies with balls which extend from bores in the lower surface of the sole plate to hold the lower surface of the sole plate out of contact with the material being ironed; and a down-mode of operation wherein pressure upon the handle of the iron causes the balls of the ball bearing glide assembles to be retracted upwardly beyond the lower surface of the sole plate to allow the sole plate to engage the material being ironed.
- a natural up-mode wherein the iron rides on a plurality of ball bearing glide assemblies with balls which extend from bores in the lower surface of the sole plate to hold the lower surface of the sole plate out of contact with the material being ironed
- a down-mode of operation wherein pressure upon the handle of the iron causes the balls of the ball bearing glide assembles to be retracted upwardly beyond the lower surface of the sole plate to allow the sole plate
- the iron When the iron is in its natural up-mode of operation, it possesses the unique capability of steam ironing fabric materials such as nylon, silk, and rayon, which normally scorch or burn easily, without burning or scorching the material being ironed.
- steam ironing fabric materials such as nylon, silk, and rayon
- the iron rides or glides on the balls of ball bearing glide assemblies during the ironing process, with the sole plate being out of engagement with the material being ironed, to eliminate or reduce the possibility of the material being scorched or burned.
- the user can apply pressure to the handle of the iron to place the iron in its down-mode of operation wherein the sole plate actually engages the material being ironed during the ironing process.
- a self-lifting electric iron comprising:
- a soleplate comprising at least a portion of the bottom of the body, the soleplate having a bottom surface for ironing an article
- the bottom of the body being provided with a plurality of retractable support rods that are movable from a first position in which the retractable support rods protrude from the bottom of the body beyond the bottom surface, forming a stand for supporting the iron in a horizontal stable position with the soleplate removed from the article being ironed or from an ironing board cover, to a second position in which the plurality of retractable support rods are located within the body;
- a support switch located on the handle with the support switch being in a first state and the plurality of retractable support rods in the first position when the handle is not gripped, and when the handle is gripped the support switch changes state to a second state and the plurality of retractable support rods move to the second position.
- the plurality of retractable support rods comprises three retractable support rods.
- each of the retractable support rods protrudes through a bore in the soleplate.
- the three retractable support rods are made of a thermally insulating material.
- each support rod has a free end distal the soleplate and if desired, each support rod is provided with a thermally insulating member attached to the free end thereof, the thermally insulating member having a generally planar support surface for abutting the article being ironed or the ironing board cover and for supporting the iron, when the support rod is in the first position.
- each support rod when each support rod is in the second position, the support surfaces are substantially flush with the bottom surface of the soleplate.
- each support rod is mounted in a housing for reciprocatory movement with respect to the housing, with the plurality of retractable support rods being maintained in the first position by means of at least one biased spring, and with the plurality of retractable support rods being moved from the first position to the second position by means of at least one actuating member.
- the at least one biased spring comprises a plurality of first springs, each support rod of the plurality of retractable support rods being in operative association with a separate single first spring of the plurality of first springs, and the at least one actuating member comprises a plurality of support units.
- each support unit has a longitudinal axis and comprises the housing, the housing having a upper and lower ends, with a generally cylindrical longitudinally extending chamber, extending from the upper end of the housing to the lower end of the housing, an air outlet at the upper end of the housing and a circular opening at the lower end of the housing, the support rod being located in the chamber and reciprocatively moveable through the hole, the first biased spring attached at one end to the upper end of the housing and at the other end to the support rod, the support rod has an annular disk extending radially outwardly from a portion of the support rod distal the free end, the annular disk dividing the chamber into two chambers, a steam chamber extending from the adjacent the lower end of the housing and an air chamber, extending from adjacent the upper end of the housing, a steam inlet for receiving steam under pressure from an external steam source, via an inner steam pipe, for moving the support rod from the first position to the second position and for transferring steam away from the steam chamber, via the inner steam pipe when the support rod
- the at least one biased spring comprises a single second spring and the at least one actuating member comprises a solenoid that is mechanically coupled to the single first spring.
- an assembly of levers connected to a strut-like member communicates between the solenoid and the plurality of retractable support rods, to move the plurality of retractable support rods from the first position to the second position.
- FIG. 1 is a bottom perspective view of the electric iron having retractable support rods in accordance with a first embodiment of a first specific application of the present invention showing the retractable support rods in an extended position;
- FIG. 2 is a bottom perspective view of the electric iron illustrated in FIG. 1 showing the retractable support rods in a retracted position;
- FIG. 3 is a side perspective view of the electric iron illustrated in FIG. 1 with the body cover removed showing the essential features of the inside of the iron;
- FIG. 4 is a side perspective view of the electric iron in accordance with a second embodiment of a first specific application of the present invention, with the body cover removed, showing the essential features of the inside of the iron;
- FIG. 5 is a side perspective view of the electric iron illustrated in FIG. 4;
- FIG. 6 is a bottom view of the soleplate of the electric iron illustrated in FIGS. 4 and 5;
- FIG. 7 is a side sectional view of a support unit in accordance with a first specific application of the present invention showing the support rod in an extended position;
- FIG. 8 is a side sectional view of a support unit in accordance with a first specific application of the present invention showing the support rod in a retracted position;
- FIG. 9 is a side perspective view of the electric iron in accordance with a second specific application of the present invention, with the body cover removed, showing the retractable support rods in an extended position;
- FIG. 10 is the view of the electric iron shown in FIG. 9 showing the retractable support rods in a retracted position.
- FIGS. 1 to 6 showing an electric iron 10 in accordance with a first specific application of the present invention.
- the electric iron 10 has a body 12 having a top 14 and a bottom 16 and a handle 18 at the top of the body 12 , to be gripped during use.
- a body cover 20 extends downwards from the handle 18 to a soleplate 22 having a bottom surface 24 for ironing an article.
- the iron 10 has a front 26 and a rear 28 .
- the soleplate 22 characteristically narrows to form a nose portion 30 .
- the soleplate 22 forms the bottom 16 of the body 12 . Stated differently, and as can be seen in FIGS.
- the bottom surface 24 of the soleplate 22 extends over the whole area of the bottom 16 of the body 12 of the iron 10 from the front 26 of the iron to the rear 28 thereof.
- the bottom 16 of the body 12 at the rear 28 of the iron 10 is provided with a raised section 32 having a step 33 , so that the soleplate 22 comprises only a portion of the bottom 16 of the body 12 .
- the bottom surface 24 of the soleplate 22 only extends from the from the nose portion 30 at the front 26 of the iron 10 to the step 33 of the raised section 32 . That is, the soleplate 22 it does not reach the rear 28 of the iron 10 .
- the iron 10 is an electric steam iron of the type in which steam is supplied to the iron from an external steam source.
- Irons of this type are well known in the art and therefore the known features of such irons will not be illustrated or described herein. Such features relate, amongst other things, to the heating of the sole plate and the conveying of steam to the article being ironed through openings in the soleplate.
- the steam which is supplied to the iron is also used in the first specific application of the present invention as a means to lift the iron from the article being ironed or from the ironing board cover.
- the bottom 16 of the body 12 is provided with three retractable support rods 34 that are movable from a first extended position in which they protrude from the bottom 16 of the body 12 beyond the bottom surface 24 of the soleplate 22 , forming a stand for supporting the iron 10 in a horizontal stable position on free ends 36 of the retractable support rods 34 with the soleplate 22 removed from the article being ironed or from an ironing board cover, to a second retracted position in which they are located within the body 12 .
- the retractable support rods 34 can be made from a metal or from a thermally insulating material.
- each metal support rod 34 is provided with a thermally insulating member 38 attached to its free end 36 .
- the thermally insulating member 38 has a generally planar support surface 40 for abutting the article being ironed or the ironing board cover and for supporting the iron 10 , when the retractable support rods are extended.
- the retractable support rods 34 are made from a thermally insulating material, then there is no reason to their free ends 36 with the thermally insulating members 38 , in which case the free ends 36 of each support rod will have a generally planar support surface 40 .
- a first support rod 34 ′ of the three retractable support rods 34 is positioned close to the front 26 of the iron 10 and two second retractable support rods 34 ′′ are positioned close to the rear 28 of the iron 10 .
- the support surfaces 40 are preferably substantially flush with, or slightly recessed from, the bottom surface 24 of the soleplate 22 .
- each support rod 34 protrudes through a bore 42 in the soleplate.
- the bottom surface 24 of the soleplate 22 extends over the whole area of the bottom 16 of the body 12 of the iron 10 all three bores 42 are located in the soleplate 22 , with a first bore 42 ′ located in the soleplate 22 close to the front 26 of the iron 10 and two second bores 42 ′′ located in the soleplate 22 close to the rear 28 of the iron 10 .
- the retractable support rods 34 are operatively coupled to a support switch 44 located on the handle 18 .
- the support switch 44 is movable from a first state when the handle 18 is not gripped to a second state when the handle is gripped. When the support switch 44 is in the first state the retractable support rods 34 are retracted and when the support switch 44 is in the second state the retractable support rods 34 are extended.
- the retractable support rods 34 are also operatively coupled to an on/off switch 45 located on the handle 18 . The on/off switch 45 is used to switch the control the use of the support switch 44 .
- the on/off switch 45 is turned “off”. However, if it is desired to use the iron 10 with the retractable support rods 34 permanently retracted, then the on/off switch 45 is turned “on”. In this mode of operation the support switch 44 is electrically by-passed and the retractable support rods 34 are permanently retracted independently of whether the handle 18 is gripped or not gripped.
- each support rod 34 is mounted in a housing 46 of a support unit 48 for reciprocatory movement with respect to the housing 46 .
- Each support unit 48 has a longitudinal axis A and comprises the housing 46 having an upper end 50 and a lower end 52 , with a generally cylindrical longitudinally extending chamber 54 , extending from the upper end 50 of the housing 46 to the lower end 52 thereof.
- the housing 46 also has an air outlet 56 at its upper end 50 and a circular opening 58 at its lower end 52 .
- the support rod 34 is located in the chamber 54 with a first biased spring 60 attached to the upper end 50 of the housing 46 at a first end 62 of the spring 60 and to the support rod 34 at a second end 64 of the spring 60 .
- the support rod 34 has an annular disk 66 extending radially outwardly from a portion of the support rod 34 distal the free end 36 thereof.
- the annular disk 66 divides the chamber 54 into two chambers; a steam chamber 68 extending from the adjacent the lower end 52 of the housing 46 towards the upper end 50 thereof and an air chamber 70 extending from adjacent the upper end 50 of the housing 46 towards the lower end 52 thereof.
- the annular disk 66 is constructed to isolate the air and steam chambers 70 , 68 one from the other, so that steam under pressure in the steam chamber 68 cannot pass into the air chamber 70 .
- the steam chamber 68 is provided with a steam inlet/outlet 72 for receiving steam under pressure from an external steam source (not shown) and also for transferring steam away from the steam chamber, via an inner steam pipe 74 .
- the support switch 44 When the handle 18 of the iron 10 is not gripped, the support switch 44 is in a normally open position and a solenoid operated steam valve 76 , operatively associated with the support switch 44 , is in a normally closed position and no steam is conveyed to the steam chamber 68 so that the biased first spring 60 retains the support rod 34 in an extended position relative to the housing 46 , as shown in FIG. 7. As can be seen, in this position, the air chamber 70 has a maximum size and the steam chamber 68 has a minimum size.
- the state of the support switch 44 is changed to a closed position, whereby an electric current is established in the solenoid operated valve 76 , operatively associated with the support switch 44 , and the solenoid operated valve 76 is opened allowing steam to be conveyed to the steam chamber 68 via the inner steam pipe 74 . Consequently, the steam pressure in the steam chamber 68 increases. As soon as the steam pressure is great enough to overcome the pressure applied by the first spring 60 on the support rod 34 , then the size of the steam chamber 68 increases, as the steam applies pressure to the annular disk 66 and at the same time the size of the air chamber 70 decreases.
- the support rod 34 shortens in length as it passes through the circular opening 58 , until the support rod is fully retracted and is located completely within the housing 46 .
- the solenoid-operated valve 76 is in operative association with all three support units 48 via the inner steam pipes 74 .
- a steam input pipe 78 for receiving steam under pressure from an external steam source (not shown) is also connected to the solenoid operated valve 76 .
- FIGS. 9 and 10 showing an electric iron in accordance with a second specific application of the present invention.
- the bottom 16 of the body 12 of the iron 10 is provided with three retractable support rods 34 that are movable from a first extended position in which they protrude from the bottom 16 of the body 12 beyond the bottom surface 24 of the soleplate 22 , forming a stand for supporting the iron 10 in a horizontal stable position on free ends 36 of the retractable support rods 34 with the soleplate 22 removed from the article being ironed or from an ironing board cover, to a second retracted position in which they are located within the body 12 .
- the iron 10 of the second specific application of the present invention does not operate by means of steam. Instead the retractable support rods 34 are moved from an extended position, as shown in FIG. 9, to a retracted position, as shown in FIG. 10, by means a single second spring 82 mechanically coupled to a solenoid 84 and in operative association with an assembly of levers 86 connected to a strut-like member 88 .
- the strut like member 88 comprises three arms 90 , each arm being connected to a support rod 34 via a central lifting unit 92 .
- the assembly of levers 86 comprises a hook-shaped first lever 94 pivotally connected to a straight second lever 96 at a first end 97 ′ thereof.
- the second lever 96 comprises a short section 98 and a long section 100 and is pivotable about a pivot axis B located between the short and long sections 98 , 100 .
- the long section 100 is coupled, at a second end 97 ′′ of the second lever 96 , to the strut-like member 88 at the central lifting unit 92 .
- the solenoid 84 has solenoid core 102 that is coupled to both the hook-like first lever 94 and the second spring 82 .
- the support switch 44 When the handle 18 of the iron 10 is not gripped, the support switch 44 is in a normally open position and no electric current flows to the solenoid 84 . In this situation the second spring 82 is biased and maximally extended, as shown in FIG. 9. The solenoid core 102 is retained by the second spring 82 protruding upwardly from the solenoid 84 and the first lever 94 is retained in a raised position. In this position, the second lever 96 is substantially horizontal, the strut-like member 88 is in a lowered position and the retractable support rods 34 are extended.
- an “on/off” switch 45 is also provided on the handle 18 of the iron 10 .
- the “on/off” switch 45 is connected by electric wires 106 to the solenoid 84 and the electric iron is connected to an external electric power supply via an electric cable 108 .
- the on/off switch 45 is turned “on” and an electric current is supplied to the solenoid 84 causing the support legs 34 to be retracted.
- the support switch 44 is electrically by-passed and the retractable support rods 34 are permanently retracted independently of whether the handle 18 is gripped or not gripped.
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Abstract
Description
- This invention relates to electric irons for ironing clothing and other items, and specifically to electric irons that include safety mechanisms for causing the irons to lift away from operating surfaces whenever they are left unattended.
- Currently, most electric irons on the market are provided with a temperature adjustment function for the user to select the most favorable temperature for the material of the clothing. A thermostat will cut off power automatically when the iron reaches the required temperature. However, the thermostat is a passive safety feature. It only detects the temperature of the iron's soleplate, but it cannot prevent an accident that may be caused by carelessly leaving the iron in a horizontal position.
- During the ironing process, it is often necessary that both the operator's hands be employed for manipulating the item being ironed or to remove the item and replace it with another. In such instances, the iron must be left un-held. If the iron is merely allowed to remain with the soleplate against the ironing board cover, sufficient heat will accumulate to raise the temperature beneath the iron to a level where the cover will sustain thermal damage such as scorching, burning or ignition. Furthermore, when there are frequent interruptions during ironing, as a result of which the iron may be accidentally left with the soleplate on the article being ironed resulting in thermal damage of that article. To avoid such damage, the heel portion of most irons is configured in a manner such that the iron can be balanced thereupon in an upright position, thereby removing the soleplate from contact with the article being ironed or with the ironing board cover. However, in such upright position, the iron is usually unstable with respect to toppling, and can easily fall off the ironing board. There are also known various types of irons equipped with means to automatically effect disengagement of the soleplate from contact with the article being ironed or with the ironing board cover when the iron is not being used by raising the iron into an inclined position intermediate between an upright position and a horizontal position.
- None of the safety mechanisms mentioned above have come into widespread use primarily because in none of them is the resting position of the iron with the soleplate horizontal and therefore the need to repeatedly manipulate the iron from the horizontal working disposition to an upright or inclined temporary or storage disposition is in itself a tedious chore.
- U.S. Pat. No. 6,105,285 describes a scorch prevention electric iron having two modes of operation during the ironing process, namely: a natural up-mode wherein the iron rides on a plurality of ball bearing glide assemblies with balls which extend from bores in the lower surface of the sole plate to hold the lower surface of the sole plate out of contact with the material being ironed; and a down-mode of operation wherein pressure upon the handle of the iron causes the balls of the ball bearing glide assembles to be retracted upwardly beyond the lower surface of the sole plate to allow the sole plate to engage the material being ironed. When the iron is in its natural up-mode of operation, it possesses the unique capability of steam ironing fabric materials such as nylon, silk, and rayon, which normally scorch or burn easily, without burning or scorching the material being ironed. When the iron is in its natural up-mode of operation, the iron rides or glides on the balls of ball bearing glide assemblies during the ironing process, with the sole plate being out of engagement with the material being ironed, to eliminate or reduce the possibility of the material being scorched or burned. When ironing material that is not easily scorched or burned as is nylon, silk or rayon, the user can apply pressure to the handle of the iron to place the iron in its down-mode of operation wherein the sole plate actually engages the material being ironed during the ironing process. When a user is not actually engaged in the ironing process, the user's release of the handle of the iron will cause the balls of the ball bearing glide assemblies to be extended beyond the lower surface of the sole plate to hold the sole plate out of contact with the material and/or the ironing board.
- In this prior art iron, the balls of the ball bearing glide assemblies normally protrude beyond the under surface of the soleplate due to the urging of a compression spring in each bearing glide assembly. In order to iron material in the down-mode of operation, i.e., with the balls of the ball bearing glide assemblies retracted upwardly beyond the lower surface of the sole plate, a downward force has to be applied to the handle of the iron in order to overcome the forces in the compression springs. This downward force has to be applied constantly whilst ironing in this mode of operation. Furthermore, it is clear that in the down-mode of operation the balls will slightly protrude from the bores in the soleplate since ironing boards are always covered with a soft material. The soft material cannot withstand the compression forces in the springs and therefore the balls will be forced out of the bores in the soleplate by the compression springs compressing the soft material between the balls and the ironing board. Clearly, an item being ironed in this mode of operation will have marks produced on it by the balls. This is one disadvantage if this prior art iron. Another disadvantage is that when a user is not actually engaged in the ironing process, the user's release of the handle of the iron, i.e., the non-application of a downward force on the handle, will cause the balls of the ball bearing glide assemblies to be extended beyond the lower surface of the sole plate to hold the sole plate out of contact with the material and/or the ironing board. However, in this position the iron is adapted to ride or glide on the balls of the ball bearing glide assemblies and therefore will not be stable against horizontal forces.
- It is an object of the present invention to provide a self-lifting electric iron that overcomes the above-mentioned disadvantages.
- In accordance with the present invention there is provided a self-lifting electric iron comprising:
- a body having a top and a bottom;
- a soleplate comprising at least a portion of the bottom of the body, the soleplate having a bottom surface for ironing an article;
- the bottom of the body being provided with a plurality of retractable support rods that are movable from a first position in which the retractable support rods protrude from the bottom of the body beyond the bottom surface, forming a stand for supporting the iron in a horizontal stable position with the soleplate removed from the article being ironed or from an ironing board cover, to a second position in which the plurality of retractable support rods are located within the body;
- a handle at the top of the body, to be gripped during use; and
- a support switch located on the handle with the support switch being in a first state and the plurality of retractable support rods in the first position when the handle is not gripped, and when the handle is gripped the support switch changes state to a second state and the plurality of retractable support rods move to the second position.
- In accordance with a preferred embodiment of the present invention, the plurality of retractable support rods comprises three retractable support rods.
- Preferably, one support rod of the three retractable support rods is located at a front end of the iron and two retractable support rods of the three retractable support rods are located at a rear end of the iron.
- In accordance with a first embodiment of the present invention, when the three retractable support rods are in the first position, each of the retractable support rods protrudes through a bore in the soleplate.
- If desired, the three retractable support rods are made of a thermally insulating material.
- In accordance with a second embodiment of the present invention, when the retractable support rods are in the first position, the one support rod located at the front end of the iron protrudes through a bore in the soleplate, and the two retractable support rods located at the rear of the iron protrude from a portion of the bottom of the body exterior to the soleplate.
- Quite generally, in the first position each support rod has a free end distal the soleplate and if desired, each support rod is provided with a thermally insulating member attached to the free end thereof, the thermally insulating member having a generally planar support surface for abutting the article being ironed or the ironing board cover and for supporting the iron, when the support rod is in the first position.
- Preferably, when each support rod is in the second position, the support surfaces are substantially flush with the bottom surface of the soleplate.
- In accordance with present invention, each support rod is mounted in a housing for reciprocatory movement with respect to the housing, with the plurality of retractable support rods being maintained in the first position by means of at least one biased spring, and with the plurality of retractable support rods being moved from the first position to the second position by means of at least one actuating member.
- In accordance with a first specific application, the at least one biased spring comprises a plurality of first springs, each support rod of the plurality of retractable support rods being in operative association with a separate single first spring of the plurality of first springs, and the at least one actuating member comprises a plurality of support units.
- Typically, each support unit has a longitudinal axis and comprises the housing, the housing having a upper and lower ends, with a generally cylindrical longitudinally extending chamber, extending from the upper end of the housing to the lower end of the housing, an air outlet at the upper end of the housing and a circular opening at the lower end of the housing, the support rod being located in the chamber and reciprocatively moveable through the hole, the first biased spring attached at one end to the upper end of the housing and at the other end to the support rod, the support rod has an annular disk extending radially outwardly from a portion of the support rod distal the free end, the annular disk dividing the chamber into two chambers, a steam chamber extending from the adjacent the lower end of the housing and an air chamber, extending from adjacent the upper end of the housing, a steam inlet for receiving steam under pressure from an external steam source, via an inner steam pipe, for moving the support rod from the first position to the second position and for transferring steam away from the steam chamber, via the inner steam pipe when the support rod is moved from the first position to the second position by means of the first spring.
- In accordance with a second specific application, the at least one biased spring comprises a single second spring and the at least one actuating member comprises a solenoid that is mechanically coupled to the single first spring.
- Typically, an assembly of levers connected to a strut-like member communicates between the solenoid and the plurality of retractable support rods, to move the plurality of retractable support rods from the first position to the second position.
- For a better understanding the invention will now be described, by way of example only, with reference to the accompanying drawings in which:
- FIG. 1 is a bottom perspective view of the electric iron having retractable support rods in accordance with a first embodiment of a first specific application of the present invention showing the retractable support rods in an extended position;
- FIG. 2 is a bottom perspective view of the electric iron illustrated in FIG. 1 showing the retractable support rods in a retracted position;
- FIG. 3 is a side perspective view of the electric iron illustrated in FIG. 1 with the body cover removed showing the essential features of the inside of the iron;
- FIG. 4 is a side perspective view of the electric iron in accordance with a second embodiment of a first specific application of the present invention, with the body cover removed, showing the essential features of the inside of the iron;
- FIG. 5 is a side perspective view of the electric iron illustrated in FIG. 4;
- FIG. 6 is a bottom view of the soleplate of the electric iron illustrated in FIGS. 4 and 5;
- FIG. 7 is a side sectional view of a support unit in accordance with a first specific application of the present invention showing the support rod in an extended position;
- FIG. 8 is a side sectional view of a support unit in accordance with a first specific application of the present invention showing the support rod in a retracted position;
- FIG. 9 is a side perspective view of the electric iron in accordance with a second specific application of the present invention, with the body cover removed, showing the retractable support rods in an extended position; and
- FIG. 10 is the view of the electric iron shown in FIG. 9 showing the retractable support rods in a retracted position.
- Attention is drawn to FIGS.1 to 6 showing an
electric iron 10 in accordance with a first specific application of the present invention. Theelectric iron 10 has abody 12 having atop 14 and abottom 16 and ahandle 18 at the top of thebody 12, to be gripped during use. Abody cover 20 extends downwards from thehandle 18 to asoleplate 22 having abottom surface 24 for ironing an article. Theiron 10 has a front 26 and a rear 28. At thefront 26 of theiron 10 thesoleplate 22 characteristically narrows to form anose portion 30. In accordance with a first embodiment of the present invention, thesoleplate 22 forms the bottom 16 of thebody 12. Stated differently, and as can be seen in FIGS. 1 to 3, in accordance with the first embodiment thebottom surface 24 of thesoleplate 22 extends over the whole area of the bottom 16 of thebody 12 of theiron 10 from thefront 26 of the iron to the rear 28 thereof. In accordance with a second embodiment of the present invention, the bottom 16 of thebody 12 at the rear 28 of theiron 10 is provided with a raisedsection 32 having astep 33, so that thesoleplate 22 comprises only a portion of the bottom 16 of thebody 12. In other words, and as can be seen in FIGS. 4 to 6, in accordance with the second embodiment, thebottom surface 24 of thesoleplate 22 only extends from the from thenose portion 30 at thefront 26 of theiron 10 to thestep 33 of the raisedsection 32. That is, thesoleplate 22 it does not reach the rear 28 of theiron 10. - In accordance with the first specific application, the
iron 10 is an electric steam iron of the type in which steam is supplied to the iron from an external steam source. Irons of this type are well known in the art and therefore the known features of such irons will not be illustrated or described herein. Such features relate, amongst other things, to the heating of the sole plate and the conveying of steam to the article being ironed through openings in the soleplate. However, as will described below, the steam which is supplied to the iron is also used in the first specific application of the present invention as a means to lift the iron from the article being ironed or from the ironing board cover. - In accordance with the first specific application of the present invention the bottom16 of the
body 12 is provided with threeretractable support rods 34 that are movable from a first extended position in which they protrude from the bottom 16 of thebody 12 beyond thebottom surface 24 of thesoleplate 22, forming a stand for supporting theiron 10 in a horizontal stable position on free ends 36 of theretractable support rods 34 with thesoleplate 22 removed from the article being ironed or from an ironing board cover, to a second retracted position in which they are located within thebody 12. Theretractable support rods 34 can be made from a metal or from a thermally insulating material. However, it should be kept in mind that when theretractable support rods 34 are located within thebody 12 in the retracted position they will be in the vicinity of thehot soleplate 22. Therefore, if theretractable support rods 34 are made from a metal the will absorb heat from the surroundings when they are retracted. Therefore, in order not to damage the surface that the hot metalretractable support rods 34 abut when they are in the extended position after being in the retracted position, eachmetal support rod 34 is provided with a thermally insulatingmember 38 attached to itsfree end 36. Typically, the thermally insulatingmember 38 has a generallyplanar support surface 40 for abutting the article being ironed or the ironing board cover and for supporting theiron 10, when the retractable support rods are extended. Clearly, if theretractable support rods 34 are made from a thermally insulating material, then there is no reason to their free ends 36 with the thermally insulatingmembers 38, in which case the free ends 36 of each support rod will have a generallyplanar support surface 40. Taking into account the shape of theiron 10 in general and of thesoleplate 22 in particular, afirst support rod 34′ of the threeretractable support rods 34 is positioned close to thefront 26 of theiron 10 and two secondretractable support rods 34″ are positioned close to the rear 28 of theiron 10. When theretractable support rods 34 are in the retracted position, the support surfaces 40 are preferably substantially flush with, or slightly recessed from, thebottom surface 24 of thesoleplate 22. - In accordance with the first embodiment of the first specific application of the present invention, when the three
retractable support rods 34 are in the extended position, eachsupport rod 34 protrudes through abore 42 in the soleplate. In other words, since in accordance with the first embodiment thebottom surface 24 of thesoleplate 22 extends over the whole area of the bottom 16 of thebody 12 of theiron 10 all threebores 42 are located in thesoleplate 22, with afirst bore 42′ located in thesoleplate 22 close to thefront 26 of theiron 10 and twosecond bores 42″ located in thesoleplate 22 close to the rear 28 of theiron 10. In accordance with the second embodiment of the first specific application of the present invention, when the three ofretractable support rods 34 are in the extended position, thesupport rod 34′ located at thefront 26 of theiron 10 protrudes through thefirst bore 42′ in thesoleplate 22, and the tworetractable support rods 34″ located at the rear 28 of theiron 10 protrude from the raisedsection 32 of the bottom 16 of thebody 12 exterior to thesoleplate 22. Hence, in accordance with the second embodiment of the first specific application, there is only one bore 42 in thesoleplate 22. - The
retractable support rods 34 are operatively coupled to asupport switch 44 located on thehandle 18. Thesupport switch 44 is movable from a first state when thehandle 18 is not gripped to a second state when the handle is gripped. When thesupport switch 44 is in the first state theretractable support rods 34 are retracted and when thesupport switch 44 is in the second state theretractable support rods 34 are extended. Theretractable support rods 34 are also operatively coupled to an on/offswitch 45 located on thehandle 18. The on/offswitch 45 is used to switch the control the use of thesupport switch 44. In the normal mode of operation, i.e., thesupport legs 34 are retracted when thehandle 18 is gripped and thesupport legs 34 are extended when thehandle 18 is not gripped, the on/offswitch 45 is turned “off”. However, if it is desired to use theiron 10 with theretractable support rods 34 permanently retracted, then the on/offswitch 45 is turned “on”. In this mode of operation thesupport switch 44 is electrically by-passed and theretractable support rods 34 are permanently retracted independently of whether thehandle 18 is gripped or not gripped. - Attention is now drawn to FIGS. 7 and 8. In accordance with the first specific application of the present invention, each
support rod 34 is mounted in ahousing 46 of asupport unit 48 for reciprocatory movement with respect to thehousing 46. Eachsupport unit 48 has a longitudinal axis A and comprises thehousing 46 having anupper end 50 and alower end 52, with a generally cylindrical longitudinally extendingchamber 54, extending from theupper end 50 of thehousing 46 to thelower end 52 thereof. Thehousing 46 also has anair outlet 56 at itsupper end 50 and acircular opening 58 at itslower end 52. Thesupport rod 34 is located in thechamber 54 with a firstbiased spring 60 attached to theupper end 50 of thehousing 46 at afirst end 62 of thespring 60 and to thesupport rod 34 at asecond end 64 of thespring 60. Thesupport rod 34 has anannular disk 66 extending radially outwardly from a portion of thesupport rod 34 distal thefree end 36 thereof. Theannular disk 66 divides thechamber 54 into two chambers; asteam chamber 68 extending from the adjacent thelower end 52 of thehousing 46 towards theupper end 50 thereof and anair chamber 70 extending from adjacent theupper end 50 of thehousing 46 towards thelower end 52 thereof. Theannular disk 66 is constructed to isolate the air andsteam chambers steam chamber 68 cannot pass into theair chamber 70. Thesteam chamber 68 is provided with a steam inlet/outlet 72 for receiving steam under pressure from an external steam source (not shown) and also for transferring steam away from the steam chamber, via aninner steam pipe 74. - When the
handle 18 of theiron 10 is not gripped, thesupport switch 44 is in a normally open position and a solenoid operatedsteam valve 76, operatively associated with thesupport switch 44, is in a normally closed position and no steam is conveyed to thesteam chamber 68 so that the biasedfirst spring 60 retains thesupport rod 34 in an extended position relative to thehousing 46, as shown in FIG. 7. As can be seen, in this position, theair chamber 70 has a maximum size and thesteam chamber 68 has a minimum size. When thehandle 18 of theiron 10 is gripped, in order to iron an article, the state of thesupport switch 44 is changed to a closed position, whereby an electric current is established in the solenoid operatedvalve 76, operatively associated with thesupport switch 44, and the solenoid operatedvalve 76 is opened allowing steam to be conveyed to thesteam chamber 68 via theinner steam pipe 74. Consequently, the steam pressure in thesteam chamber 68 increases. As soon as the steam pressure is great enough to overcome the pressure applied by thefirst spring 60 on thesupport rod 34, then the size of thesteam chamber 68 increases, as the steam applies pressure to theannular disk 66 and at the same time the size of theair chamber 70 decreases. As the size of theair chamber 70 decreases, air in theair chamber 70 is expelled through theair outlet 56. Clearly, as the size of thesteam chamber 68 increases, thesupport rod 34 shortens in length as it passes through thecircular opening 58, until the support rod is fully retracted and is located completely within thehousing 46. - As can be seen in FIGS. 3 and 4, the solenoid-operated
valve 76 is in operative association with all threesupport units 48 via theinner steam pipes 74. Asteam input pipe 78 for receiving steam under pressure from an external steam source (not shown) is also connected to the solenoid operatedvalve 76. When thehandle 18 of theiron 10 is gripped, in order to iron an article, and the state of thesupport switch 44 is changed to a closed position, steam to be conveyed to all threesupport units 48 by theinner steam pipes 74. Consequently, all threeretractable support rods 34 retract until they are located completely within thehousing 46. Similarly, when thehandle 18 is released and the state of thesupport switch 44 is changed to an open position, the steam supply to al threesupport units 48 is cut off and all threeretractable support rods 34 become fully extended. Also shown in FIGS. 3 and 4 is a returnsteam exit pipe 80 for the passage of steam from thesteam chambers 68, as thesteam chambers 68 decrease in size when the support members move from a retracted position to the extended position. The steam exiting the returnsteam exit pipe 80 can be conveyed to the article being ironed through openings in thesoleplate 22. With reference to the on/offswitch 45, it will be clear that when the on/offswitch 45 is turned “off” then the support switch is in an operative mode. However, when the on/offswitch 45 is turned “on” then the solenoid operatedvalve 76 is opened allowing steam to be conveyed to thesupport units 48 by theinner steam pipes 74. Consequently, theretractable support rods 34 will remain retracted as long as the on/offswitch 45 is turned “on”. - Attention is now drawn to FIGS. 9 and 10 showing an electric iron in accordance with a second specific application of the present invention. As with the first specific application of the present invention, the bottom16 of the
body 12 of theiron 10, is provided with threeretractable support rods 34 that are movable from a first extended position in which they protrude from the bottom 16 of thebody 12 beyond thebottom surface 24 of thesoleplate 22, forming a stand for supporting theiron 10 in a horizontal stable position on free ends 36 of theretractable support rods 34 with thesoleplate 22 removed from the article being ironed or from an ironing board cover, to a second retracted position in which they are located within thebody 12. Unlike the first specific application of the present invention, theiron 10 of the second specific application of the present invention does not operate by means of steam. Instead theretractable support rods 34 are moved from an extended position, as shown in FIG. 9, to a retracted position, as shown in FIG. 10, by means a singlesecond spring 82 mechanically coupled to asolenoid 84 and in operative association with an assembly oflevers 86 connected to a strut-like member 88. The strut likemember 88 comprises threearms 90, each arm being connected to asupport rod 34 via acentral lifting unit 92. - The assembly of
levers 86 comprises a hook-shapedfirst lever 94 pivotally connected to a straightsecond lever 96 at afirst end 97′ thereof. Thesecond lever 96 comprises ashort section 98 and along section 100 and is pivotable about a pivot axis B located between the short andlong sections long section 100 is coupled, at asecond end 97″ of thesecond lever 96, to the strut-like member 88 at thecentral lifting unit 92. Thesolenoid 84 hassolenoid core 102 that is coupled to both the hook-likefirst lever 94 and thesecond spring 82. It will be apparent to those skilled in the art that this particular arrangement of the assembly oflevers 86 enables relatively small linear movements of thesolenoid core 102 to be amplified to large enough linear movements in order to reciprocate thesupport members 34 between the extended and retracted positions. - When the
handle 18 of theiron 10 is not gripped, thesupport switch 44 is in a normally open position and no electric current flows to thesolenoid 84. In this situation thesecond spring 82 is biased and maximally extended, as shown in FIG. 9. Thesolenoid core 102 is retained by thesecond spring 82 protruding upwardly from thesolenoid 84 and thefirst lever 94 is retained in a raised position. In this position, thesecond lever 96 is substantially horizontal, the strut-like member 88 is in a lowered position and theretractable support rods 34 are extended. - When the
handle 18 of theiron 10 is gripped, in order to iron an article, the state of thesupport switch 44 is changed to a closed position, whereby an electric current is established in thesolenoid 84 as a result of which thesolenoid core 102 is urged downwardly into thesolenoid 84. As thesolenoid core 102 moves downwardly, thesecond spring 82 becomes compressed, thefirst end 97′ of thesecond lever 96 is forced downwards towards thesoleplate 22 by thefirst lever 94, whereby thesecond lever 96 rotates about the pivot axis B and thesecond end 97′ of thesecond lever 96 moves upwards away from thesoleplate 22 taking with it the strut-like member 88. Consequently, as the strut-like member 88 moves upwards, thesupport members 34 retract from their extended position until they are located completely within the body of thebody 12 of theiron 10, with eachsupport member 34 located within acylindrical container 104, as shown in FIG. 10. - As with the first specific application, an “on/off”
switch 45 is also provided on thehandle 18 of theiron 10. The “on/off”switch 45 is connected byelectric wires 106 to thesolenoid 84 and the electric iron is connected to an external electric power supply via anelectric cable 108. As with the first specific application, if it is desired to use theiron 10 with theretractable support rods 34 permanently retracted, then the on/offswitch 45 is turned “on” and an electric current is supplied to thesolenoid 84 causing thesupport legs 34 to be retracted. In this mode of operation thesupport switch 44 is electrically by-passed and theretractable support rods 34 are permanently retracted independently of whether thehandle 18 is gripped or not gripped. - Although the present invention has been described to a certain degree of particularity, it should be understood that various modifications and alterations can be made without departing from the spirit or scope of the invention as hereinafter claimed.
Claims (18)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL14522701A IL145227A0 (en) | 2001-09-02 | 2001-09-02 | Self-lifting electric iron |
IL145227 | 2001-09-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20030056408A1 true US20030056408A1 (en) | 2003-03-27 |
US6715222B2 US6715222B2 (en) | 2004-04-06 |
Family
ID=11075752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/218,572 Expired - Lifetime US6715222B2 (en) | 2001-09-02 | 2002-08-15 | Self-lifting electric iron |
Country Status (11)
Country | Link |
---|---|
US (1) | US6715222B2 (en) |
EP (2) | EP1647626A3 (en) |
JP (1) | JP4142575B2 (en) |
KR (1) | KR100622470B1 (en) |
CN (1) | CN100412257C (en) |
AT (1) | ATE313658T1 (en) |
DE (1) | DE60208212T2 (en) |
DK (1) | DK1423567T3 (en) |
ES (1) | ES2250693T3 (en) |
IL (1) | IL145227A0 (en) |
WO (1) | WO2003021030A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100058624A1 (en) * | 2006-12-15 | 2010-03-11 | Laurastar S.A. | Iron |
US20170356121A1 (en) * | 2016-06-09 | 2017-12-14 | Bissell Homecare, Inc. | Portable, unattended heating device for stain treatment pad |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6453587B1 (en) * | 2001-05-18 | 2002-09-24 | Ehsan Alipour | Self lifting iron |
KR20080026102A (en) * | 2005-05-13 | 2008-03-24 | 유노보, 인크. | Automatic standby electric clothes iron |
KR100685297B1 (en) | 2006-10-11 | 2007-02-22 | 씨에스정보기술 주식회사 | Electric safety iron used electromagnet |
CN102691199A (en) * | 2012-05-28 | 2012-09-26 | 刘凯 | Electric iron free of scorching clothes |
US9551106B2 (en) * | 2015-05-20 | 2017-01-24 | Samuel Burke | Steam iron and burn prevention apparatus |
CN105502167A (en) * | 2016-02-28 | 2016-04-20 | 博艳萍 | Light pressure ironer lifter |
KR102261859B1 (en) * | 2019-11-14 | 2021-06-04 | 울산과학대학교 산학협력단 | Safety iron having rapid ironing and cooling |
CN111021023B (en) * | 2019-12-19 | 2021-11-12 | 月立集团有限公司 | Safety steam brush |
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US2076614A (en) * | 1935-08-29 | 1937-04-13 | Hyman D Bowman | Flatiron |
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DE392454C (en) * | 1923-03-20 | 1924-03-21 | Josef Graulich | Electric iron |
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2001
- 2001-09-02 IL IL14522701A patent/IL145227A0/en active IP Right Grant
-
2002
- 2002-08-07 ES ES02760519T patent/ES2250693T3/en not_active Expired - Lifetime
- 2002-08-07 EP EP05027793A patent/EP1647626A3/en not_active Withdrawn
- 2002-08-07 AT AT02760519T patent/ATE313658T1/en not_active IP Right Cessation
- 2002-08-07 JP JP2003525725A patent/JP4142575B2/en not_active Expired - Fee Related
- 2002-08-07 KR KR1020047002877A patent/KR100622470B1/en not_active IP Right Cessation
- 2002-08-07 CN CNB028216601A patent/CN100412257C/en not_active Expired - Fee Related
- 2002-08-07 EP EP02760519A patent/EP1423567B1/en not_active Expired - Lifetime
- 2002-08-07 DE DE60208212T patent/DE60208212T2/en not_active Expired - Lifetime
- 2002-08-07 DK DK02760519T patent/DK1423567T3/en active
- 2002-08-07 WO PCT/IL2002/000647 patent/WO2003021030A1/en active IP Right Grant
- 2002-08-15 US US10/218,572 patent/US6715222B2/en not_active Expired - Lifetime
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US1694688A (en) * | 1924-12-03 | 1928-12-11 | Max D Ordmann | Support attachment for flatirons |
US2076614A (en) * | 1935-08-29 | 1937-04-13 | Hyman D Bowman | Flatiron |
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US20100058624A1 (en) * | 2006-12-15 | 2010-03-11 | Laurastar S.A. | Iron |
US8099882B2 (en) * | 2006-12-15 | 2012-01-24 | Laurastar S.A. | Iron |
US20170356121A1 (en) * | 2016-06-09 | 2017-12-14 | Bissell Homecare, Inc. | Portable, unattended heating device for stain treatment pad |
US10550508B2 (en) * | 2016-06-09 | 2020-02-04 | Bissell Homecare, Inc. | Portable, unattended heating device for stain treatment pad |
Also Published As
Publication number | Publication date |
---|---|
EP1423567B1 (en) | 2005-12-21 |
EP1423567A1 (en) | 2004-06-02 |
KR20040036921A (en) | 2004-05-03 |
CN100412257C (en) | 2008-08-20 |
IL145227A0 (en) | 2002-06-30 |
WO2003021030A1 (en) | 2003-03-13 |
DE60208212T2 (en) | 2006-07-13 |
US6715222B2 (en) | 2004-04-06 |
EP1647626A3 (en) | 2006-05-03 |
DE60208212D1 (en) | 2006-01-26 |
CN1630753A (en) | 2005-06-22 |
DK1423567T3 (en) | 2006-03-06 |
ATE313658T1 (en) | 2006-01-15 |
ES2250693T3 (en) | 2006-04-16 |
KR100622470B1 (en) | 2006-09-19 |
EP1647626A2 (en) | 2006-04-19 |
JP4142575B2 (en) | 2008-09-03 |
JP2005527248A (en) | 2005-09-15 |
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